#pptplayer_previous {
	position: absolute;
	display:block;
	padding:10px;
	height:200px;
	margin:100px 50px 5px 100px;
}
#pptplayer_next {
	position: absolute;
	display:block;
	padding:10px;
	height:200px;
	margin:100px 50px 5px 450px;
}